this isn't over yet. those were his words. meantime, for the first time, survivors still at the hospital will no longer have to share the building with this man, the younger suspect, dzhokhar tsarnaev. earlier this morning, he was transferred to the federal

medical prison facility on what used to be fort devins, 40 miles northwest of here. we'll be live at that facility tonight as well. also tonight, as we mentioned a moment ago, we are learning more about one of the pipe bombs found at the scene of last week's shootout in watertown. an official calling it similar to a design published in an al qaeda magazine. the lingering question is simply following a recipe enough, or did the bombers have help, instruction? former cia officer bob baer and others weigh in on that. susan candiotti has late reporting on that as well as other late wrinkles in the investigation, including breaking news on what and who led authorities to this landfill not far from where the younger suspect went to college. she's also got new details on the shadowy figure known only as misha who reportedly steered the suspects or at least the older brother toward a more radical strain of islam. mary snow shows us a very rare inside look at the biggest and many say best local

antiterrorism task force anywhere run by the new york police department. she asked if things might have been different if the bombers had first targeted new york. also tonight, as always, there are the heroes and the survivors. today, jeff bowman, we got some news about him. you know he's one of the people who first identified one of the suspects. i also speak to heather abbott, who had the difficult choice of whether to try to live with a mangled foot or to have her foot amputated. we'll tell you what she chose and how she's doing right now. we begin with susan candiotti, who has late details on the investigation. susan, what do you know? what led investigators first to this landfill? >> well, this information is coming to us from a u.s. law enforcement official who is very close to the boston investigation and someone with whom i've been talking with throughout. this source tells us that the leads to search the landfill for that laptop computer came not only from the suspect himself, the young man who is now hospitalized, but others who, according to this official, may

have had knowledge of its whereabouts or may even have played a role in ditching it, getting rid of it, after the bombing. now, the source says there is

also evidence that leads investigators to think that the

elder brother, tamerlan, may

have been involved in drug dealing. the source would not elaborate on the nature of the evidence. we've already been talking about the fact that they have been looking into whether he may have supported himself through drug dealing. but of course, if they can find that laptop, anderson, in this landfill after it had been ditched somewhere that was, you know, like a dumpster that eventually made it to the landfill, if they can get into that, they can find out things like e-mails and contacts and schedules, and instructions. so much other information about how this plot may have come together. >> just a couple quick things. again, we may not know the information so just say no if we don't. do we know when this laptop was allegedly ditched? >> only after the bombing. not precisely when. and that's something they're still trying to work out. >> also, several days ago, as you mentioned, we had reported

that law enforcement had as a

working hypothesis the idea that tamerlan may have been involved in drug dealing. what you're hearing tonight is more firm than that, not just a working hypothesis? >> that's right. that there is actual evidence that they're looking into to follow that thread, more than just a suspicion. when i pressed the official for what that information was, what

the evidence was, i didn't get

very far at this point. >> okay. i understand you also have new information about what the bombs were made of or how they were constructed. what do you know? >> the belief number one is that both of the brothers had a remote device to blow up each of the two bombs. now, in terms of the ingredients, we know that they're still analyzing a lot of this information, but they do know that one of the pipe bombs

that was used in the shootout in watertown, those improvised devices were in fact constructed from elbow pipes. now, elbow pipes, that is one instruction method, rather, that comes up from time to time in "inspire" magazine which is something that has been used and promoted by al qaeda to give information about how to make a bomb. so that bit of information also is an important part of this alleged plot investigation. >> what about the suspect's level of cooperation? there has been a lot of talk from different people about how he may have stopped giving investigators information once he was mirandized. is that accurate? is that true? >> well, sources are telling me that the investigators and one official used this term were very thorough, that they got a lot of information from this young man before he was mirandized and was advised of his rights. now, while he is not talking substantively at this point, there is still communication and of course, over time, anderson, that can change and it's changed in past investigations, it could change again this time. used against police during the gun fight last week in watertown, involved an elbow where the army base used to be. jason carroll is there right now. he's outside federal medical center. you learned some new details about how tsarnaev was processed and handled when he got to the facility. what have you heard? >> reporter: well, basically what i can tell you, anderson, is that tsarnaev is in stable condition and doctors at beth

israel as well as u.s. marshals decided he was stable enough to be able to be moved to this facility. happened early this morning, we're told just around 5:00 a.m., and immediately upon tsarnaev's arrival, he was put through something that's called the intake screening program. that's a step by step program. first step on that is he goes through a strip search. after that, he has a medical screening. then a psychological screening. after that, he takes part in something that's called a social intake screening and that's basically where they debrief him on the rules and regulations of what's involved in being at this facility. and then, anderson, we're told they took a dna sample. they took fingerprints. also, they took a photograph. all of that material was then turned over to the fbi and i'm told that entire process took about an hour before he was then transferred to his cell. anderson? >> so is he like in a hospital room? you said he's in a cell? >> reporter: yes. what i'm told is from the spokesperson here, i had two conversations with him today,

basically it's a very basic cell. it has a steel door, it has a slot in the front of the door so food can go through it. he has his own sink, his own toilet. it is a single cell, but it's in a restricted part of the

facility. this entire facility can hold about 1,000 inmates, but since he's deemed to be a high risk he's deemed to be a high risk offender, he's held in a special puffs has soft, air-fluffed pillows that are dermatologist tested to be gentle on your skin. face every day with puffs softness.

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welcome back. our breaking news tonight, cnn has learned that others may have, said may have, played a role in helping suspect number two, the younger suspect, getting rid of evidence after the bombing. namely, a laptop that investigators think was ditched in a landfill near his college campus after the bombings. now, a federal law enforcement official close to the investigation says their leads to search the dump came not only from the suspect but others who

may have had knowledge of its whereabouts or may have played a role in ditching it. susan candiotti is told that tamerlan may have been involved in drug dealing. susan also reporting tonight that investigators have identified the shadowy figure, misha, who may have helped radicalize the older brother, that's the concrete, now a hypothetical. would things have happened differently if the bombers had been targeting new york? some experts say yes. mary snow will explain why right now. >> reporter: a show of police force that's now a routine drill in new york city in the wake of september 11th. all of it viewed back at police headquarters in a command center very few civilians are ever allowed to see. it's part of an antiterrorism initiative put in place by new york police commissioner ray kelly. >> are you aware of any other police department that has this extensive technology? >> no. no. you know, people understandably

don't see themselves threatened as we do. >> reporter: but there are some things in this nerve center we're not allowed to show you, like the electronic board constantly updating with police alerts about criminal and suspicious activities. some 4,000 cameras around the city stream into this command center. due to security concerns, boston police won't say how many cameras are in their city, but the number is believed to be dwarfed by those in new york. select cameras even send out an automated alarm if a bag is left unattended for several minutes. >> if it looks -- continues to look suspicious, the bomb squad would come in. they would try to x-ray it and if there was still no final determination, they may use a disrupter to -- you know, high-powered water that would disrupt a bomb. >> reporter: times square is of particular concern because millions of people come here every year, and in 2010, it was the target of a failed car bomb attempt.

the nypd has stressed video surveillance here but it's also put counterterrorism resources into things you can't see. 1,000 officers working counterterrorism. the unit actively monitoring for potential terrorists. >> the lead may come in from another law enforcement or intelligence agency so it might come from some other part of the country or somewhere around the world. >> reporter: mitch silver is the former head of the nypd's counterterrorism intelligence unit. in 2007, he wrote a report about the threat of home-grown terrorists, citing the biggest threat coming from ordinary citizens who become radicalized in the west, specifically muslims. it generated controversy. the nypd has also come under criticism for monitoring muslims but the department insists everything done is within a legal framework. silver stresses that keeping tabs on suspicious behavior can potentially track down a lone wolf. he points out that in the case

of tamerlan tsarnaev, questions from russia about his travel there as well as being asked to leave a mosque would have put him on the radar of the nypd. he says there are other personal changes that can be warning signs of radicalization. >> these individuals gave up their old habits. they gave up their old friends. just like we had heard with the tsarnaev brother, tamerlan, he gave up boxing because that was considered a secular activity. >> reporter: silver says social networking sites and chat rooms are often enablers and strengthen the radicalization process. all of it funneling through the nypd's counterterrorism search for a needle in a haystack.

>> mary snow, it's really interesting, that idea that there are certain sort of common markers that might indicate someone going down the road of increased radicalism, and these are all things that the nypd tries to look out for, things like causing disruption at a mosque or leaving a mosque or social media networks, things like that. >> reporter: yeah, anderson, and what they're saying is that there have to be certain criteria for an investigation such as, you know, another country asking questions or travel plans that might be under suspicion but yes, all these things are factors in things they look for, and in monitoring any kind of suspicious activity or just sudden changes in a person's life are all part of -- in what is described as a mosaic really of facts they try to weave together. >> fascinating. mary, appreciate it. whatever the target, so many questions remain as to the motivation. what put the bombing suspects on their path to boylston street and beyond if they are in fact guilty? the surviving suspect claimed they were self-radicalized and there's this. misha, in tamerlan's time in russia and a string of other possibilities to consider. with me now is a former leader in the global islamist movement and now a human rights and

democracy activist. great to have you back on the program. do you believe, the nypd clearly believes as mary snow was just reporting that there are certain markers, a disruptive family event, alienation perhaps from a mosque or religious institution, that they can trace. do you think there are certain commonalities that you see in people as they go down the path toward radical islam? >> well, there are those who are less trained, less well trained and of course, they will be less vigilant in concealing the radicalization that they are going through, and the way in which that will appear will be an example such as tamerlan tsarnaev being kicked out or expelled from the mosque for his extreme views. the traditional religious muslim

communities have always rejected this form of extremism and even when i was recruited at the age of 16 to an islamist organization, i not only have been kicked out of a mosque, i

have been physically attacked at a mosque for promoting my brand of radical islamism. so that's always been the case. but then there are the really sort of professional trained radical islamists and if you think back to the 9/11 hijackers, for example, some of

the stories we heard of them mixing in pubs, almost even drinking alcohol, they will do whatever it takes to go undetected, because they know that there will be people out there looking for this sort of behavior, and they are the more -- in fact, i would be more worried about those because they would be the ones who would be able to reap much more devastation. that begs the question, what do we do about this type of person who doesn't change his or her behavior and blends in with everybody else, and the report mentioned it accurately. it's like looking for a needle in a haystack. that leaves us only with one other option. that's what i speak about a lot. that is that we have to ask the question what makes angry young muslims at the age of 16, 17, 18 years old or around there, join this form of or this phenomenon in the first place. why do they believe that this is a legitimate vent for any frustrations they may be feeling and why do they no longer join militant communist organizations as they perhaps may have done in the '50s and '60s. wh >> what london of the anderson, a you think of that's wh c where ment h education. on the organized an as some t egypt wi >> right. i apprecia w what to do, the to the heroes who saved so many lives here, and to the victi the day of the marathon, heath mangled. this picture wa her injured foot. w people's everybody, i think all of us turned aro i know i saw a i saw people crying somethin the entranc but as people kept running by and a woman luck >> to t exit where th thought if i it will sc ground that i s >> what's going throug >> they >> they put yo >> they put me abo foot, t all the little bones in my heel to keep your foot. >> so in th l keeping the f i think >> do you think a l day, or d think >> i pref that's not what with. >> i'm th experience, my initial, you know, ta own lives at risk because they and then maybe details late >> no. >> just g >> i wish yo >> th t other victims' ac360.com. coming up tonight, new inform we're live uns inclu each there were nev tamerlan wasn't e >> t of the house waltham. something else didn't make sense.

the victims who were each killed in different rooms in this house were covered in marijuana. investigators describe it as a symbolic gesture. robbery wasn't a motive because police found thousands of dollars in cash. the theory is that the victims knew their killers. >> we have no evidence of a break in the apartment and we have other indicia that the decedents and the assailants were known to each other. we know there are at least two people who are not in that apartment now that were here earlier. >> reporter: that was 19 months ago but the trail went cold. no arrests, no named suspects. but the attack on the boston marathon revived interest in the case because one of the victims, 25-year-old brendan mass, was close friends with bomb suspect tamerlan tsarnaev. tsarnaev was a golden gloves boxer. his buddy was trained in mixed martial arts. together they would spend hours sparring here at this gym. tsarnaev was a golden gloves boxer. his buddy trained in mixed martial arts. the two friends spent hours sparring together here at this gym. coaches describe tamerlan as confident, full of bravado, a a sou of t staying this dine it's such fa the c t mary snow is joining but other than t much diff on > in new york city in the w a initia you know, p arou would come in. millions of peopl counterterrorism the unit act potential ter anot former head of the n m the departm rus radar. tod >> unit weapon being to use po with respect we have to act prudently. world, chemical weapons -- of weapons %f chemical barbara >> reporter: wolf patr focusing on techno the target here, a suitcase, reflect the lase explosives nearly a foot >> reporte dog's nose sara >> reporter: dogs have to get close up to th the marathon, you'd cnn's randi kay >> r prec >> if i'm on a bomb sq small amo > if you want to h you can go to c

you can also go to t what talk abou t design outlined in a magazine. this magazine to be specific now i have a copy of this it's 67 pages what also today, i apparently searching a lan they think that in that they may find th qui this ongoing story tonight. jason is out front federal medical center nick peyton w line c transferred early, when he was told about his bedside, he was able to no mo was also, he was f >> jason, i know th about he is in a single cell. th the tsarnaev family used to what that when th describing how they must have left before bombing took out the street they lived in. anyt happ a clear know the answers. today i know you lear to do immediately? >> report perhaps investiga of cour >> nick, one final quick question. what happe now this group global s wa before, give >> reporti in this co bee of -- to russia in order to carry out these types of attacks. in parti sch events. not j as well, both hitting o soldiers, hitting pakistani units. and so perspective, the m at that time they asked do we >> i think we're going to s aft russi the expa was added to the t.i. same time tha as you're ha and person that and made the argument th% w and so it will be interesting trying to get th i am tsa we have more of hour. also out fron the tsarnaev broth you may not be able to tell what figure out why tamerlan and our guest, myran salaam. you are muslims in america i'm muslim an i say that as a simple message, but many americans have not make it clear that these people blind to an almost textbook case o we must acknowledge that it ha the problem you have hindus, and so i think were emb menti that alger broth there > dean, t "daily beast" that said something defici sh is saying th say, look, most mu communit there may have been denial that's not ju preaching martin luther king nonviolence. who or congressman, cabs -- th te suspect nuhe fi > musing pe hm jailed f the al qaeda or organizati dow the day after the attack, it

it's been humbling to talk to the heroes who saved so many lives here, and to the victims who have shown really extraordinary strength and grace. today, i had the privilege of meeting heather abbott. she's a great person, as you're about to see. the day of the marathon, heather, some of her friends had taken the train up from providence, rhode island. it's a tradition for them, catch a baseball game, watch the marathon runners. heather was hit by the second blast. her left foot and ankle, badly mangled. this picture was taken just days after the attack.

that's of course first lady michelle obama visiting heather in the hospital. not long after that visit, heather faced a decision. it's a decision that's hard to imagine, whether or not to keep her injured foot. we talked earlier today. can you tell me about what you remember from that day? >> yeah. that day, i came up to boston with a group of friends to watch the red sox game, and then go watch the runners close to the finish line at a bar called forum. i remember getting -- when we got to the bar, they were standing at the door taken people's i.d.s. my two girls were in front of me. i was the last one in line. my friends were already inside the bar. and we heard, you know, a loud noise. everybody, i think all of us turned around. i know i saw a lot of smoke. i saw people crying and running, and i immediately thought i was at some sort of terrorist attack. >> that was your initial

thought? >> it was. because it reminded me of something i saw on the september 11th events. so before i could even think of what to do, the second blast happened and i found myself catapulted into the bar on the ground. >> so it actually lifted you up? >> yes. >> and blew you through where the entrance of the bar is? >> yeah. >> wow. >> it did. and i saw one of my friends in front of me and everybody was just running towards the back of the bar. i was outside and i remember thinking like is that the right thing to do, like what if there's another one. but as i started to think about it, i realized i couldn't move. i felt like my foot was on fire. i was in a lot of pain, and i couldn't stand up. so i learned later that i started crawling towards the exit, and i was just saying somebody please help me. people kept running by and a woman luckily heard me say it and came over and tried to give me a hand. she asked another woman to assist her and they both were trying to get me to the back. >> to the back of the bar? >> to the back of the bar, the exit wher thought if >> wan >> a >> ambul were sent to the fbi. >> because you were so close. >> yes. >> so you get to the hospital. at what point did you learn about your injury? >> i don't think it was until the next day, when i woke up. from the anesthesia. >> what did they say to you when you woke up the next day? >> they said, they told me i had a very serious injury to my foot, that my ankle is broken, all the little bones in my heel were broken, there was some tissue damage, and that they would be doing another surgery to really get in there and take a good look at it and determine whether they would be able to save it or not.

>> you were presented with a choice. >> um-hum. >> about whether or not to try to keep your foot. >> right. >> i can't imagine being presented with that choice. >> i couldn't have imagined it until i was faced with it myself. >> so in the end, you decided to let them take off the foot? >> i did. >> when you make the decision,

was it -- what were you feeling? >> to me, there almost wasn't a choice because the way they described my life being with keeping -- with the option of keeping the foot, i couldn't imagine having a life where i couldn't -- i really couldn't do anything for myself. so i really never doubted the decision. >> how do you feel now? >> i feel -- i still feel as though i made the right decision. i think the rehabilitation is going to be difficult. it's going to be a lot of work. but i made progress every day so i feel confident that, you know, eventually i'll get there. >> you've got a great attitude. >> if i didn't, i won't get to where i want to be.

>> do you think a lot about that day, or do you prefer not to think about it? >> i prefer not to think about it. i haven't focused a lot of

energy on recounting the events. i think at first i did a couple times, you know, what if i had gone with the first crowd of people that went over to the bar, maybe this wouldn't have happened to me, you know. what if i decided that i wasn't going to go to the game this year. and i think i did that for a little while before i said well, what if anything.

that's not what happened. this is what happened. this is what you have to deal with. >> you're dealing with it. >> i am. >> i'm so impressed by the people who rushed in to help people like yourself, who, you know, took off their belts and tied tourniquets and -- >> yeah. that, i think, from this experience, my initial, you know, takeaway has been that people will do things that you would just never expect them to. i mean, the folks who actually got me out there, got me outside on to the ambulance didn't know me, they had no obligation to help me. they were really putting their own lives at risk because they didn't know what was going to happen next. >> do you think about the people who did this to you? >> i haven't thought about it yet. i just kind of want to stay focused on rehabilitating myself and then maybe i'll learn those details later. >> but at this point that's not important to you. >> no. >> just getting better is? >> just getting better. >> i wish you strength in the days ahead. >> thank you. thank you very much. >> thanks. >> heather abbott. her spirit is so strong. a fund has been set up to help pay for heather's recovery and the prosthetic devices she's going to need for the rest of her life. to make a contribution, go to gofundme.com back slash heather abbott. find that link plus links to other victims' funds on

ac360.com. coming up tonight, new information about an unsolved triple murder case back from 2011. one of the victims was a close friend of tamerlan tsarnaev. now investigators are looking closely at the case for any closely at the case for any possible connection. those nighs when it's more than a bad dream, be ready. for the times you need to double-check the temperature on the thermometer, be ready. for high fever, nothing works faster or lasts longer. be ready with children's motrin. ♪ [ female announcer ] life is full of little tests, but bounty basic can handle them. in this lab demo one select-a-size sheet of bounty basic is 50% stronger than one full sheet of the leading bargain brand. bring it. bounty basic. even in stupid loud places. to prove it, we set up our call center right here... [ chirp ] all good? [ chirp ] getty up. seriously, this is really happening! [ cellphone rings ] hello? it's a giant helicopter ma'am.

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welcome back.

we're live in boston tonight. investigators in massachusetts are taking a new look at an unsolved murder case from back

in september of 2011 in light of what they're hearing about the dead bombing suspect, tamerlan tsarnaev. three people were killed back then in september of 2011, including tamerlan's friend and sparring partner. the district attorney said at the time that it was not a random crime, that the victims and killers appear to have known each other. there were never any arrests and 25-year-old brendan mass, was close friends with bomb suspect tamerlan tsarnaev. tsarnaev was a golden gloves boxer. his buddy was trained in mixed martial arts. together they would spend hours

sparring here at this gym. tsarnaev was a golden gloves boxer. his buddy trained in mixed martial arts. the two friends spent hours sparring together here at this gym. coaches describe tamerlan as confident, full of bravado, a man who hugged his coaches and competitors and who bragged about his young wife and newborn daughter after competing in the 2010 boxing nationals. a source says tsarnaev was one of the last people known to have seen mess alive and that he was never interviewed by police in . >> aur clothes were torn off. i could not find kevin at all. my husband, bill, was on the ground next to me. but i didn't know where kevin was. i couldn't see him.

it when i was with him, but he did speak to my father a lot, and we did try to get my younger brother involved in martial arts, so i mean, it's kind of like a strange link between them. >> deborah joins me now. it's such a bizarre crime. it's rare you have three people whose throats are slit so violently. >> right. the way it was done is fascinating. the reason they believe there was more than one person,

. >> aur clothes were torn off. i could not find kevin at all. my husband, bill, was on the

on a personal note, it's been a real honor to be in boston these past 11 days or so, we've met so many brave, heroic people from survivors whose determination and optimism have been nothing short of inspirational. this is a city that stands united. a city that will not be defeated. we've met people who have shown us what it means to be boston strong. >> i had this one thought in my head that i need to get there to help these people. and that's all i could focus on at that time. that there had to be something i could do to help these people. and fortunately, you know, after

i told one of the police officers that i was a pediatric resident, they said we need your help. we need you to be there and help us. i they tried to run with me down, to es kort me down, but i sprinted ahead of them. hopefully, at the end, we'll have the ability to run forward and i know i plan on running the marathon again next year. >> we're not going to let something like that stop us. we're not going to let a terrorist act, foreign or domestic. we're americaning. we're going to step up and right back into it. that's them winning if we don't get back into it. you know what i mean? i would hope the marathon goes on next year and all the events future from here in boston and go on. we're not going to let them win. as simple as that. >> this city has been struck and the people have been struck, people are holding together and people are going to get through

this together. as community. maybe this will change us forever. evil hit, but good rises. >> i'm proud to live in a city of heroes with all of the police, the fire, the health care, the civilians, everybody making what happened, the miracle that happened, as far as saving so many. >> we just happen today be in a really bad situation. but you were there. you were put there for a reason and you know, the guts or whatever you want to call it, to run in there and make a difference. >> i don't want that to be the end. i'm only 32. i don't want this to be the end. so whether it's, you know, running the marathon or walking the marathon or crawling the marathon and being the last one across, i'm okay with that. i didn't say i'd win it. but i'm defiant and i want to come out stronger.

>> that's what boston strong is all about. we'll be right back.

in some ways, boston is not the same city it was just 11 days ago. martin richard, krystin campbell, are gone. so many lives have been changed. boston isn't is same, but it is as strong as ever. maybe stronger than ever. that does it for this edition of "360." is not the same, and that

does it for this edition of "360." thank you for watching. good morning, everybody. welcome to our continuing coverage of the boston bombing. i am poppy harlow coming live. we have new details about why investigators are combing in a landfill. the critical information they hope to find to a possible clue of an accomplice. and also new, suspected al qaeda magazine that has